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L-Lysine L-Lysine 500mg 250 caps.
Now Foods
14.80 $


All variants:

From 3 units only 14.51 $ /Units.

No GMO For halal
14.80 $With VAT
0.06 $ / serving
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  • Supports the cardiovascular health
  • Supports the functions of the immune system
  • Increases the absorption and use of Ca
  • Takes part in regeneration processes
  • Participates in the formation of collagen
  • Inhibits the multiplication of HSV
  • Displays an anxiolytic effect
  • Supports the structure of bone tissue
  • Supports stress reduction
  • Builds muscle protein

Now Foods L-Lysine is a dietary supplement in capsules containing one of the essential amino acids – lysine. It cannot be synthesized in the human body and therefore it must be supplied from the outside. L-lysine plays an important role in the absorption of calcium, building of muscle protein, regeneration after a surgery or sports injuries, and in the production of hormones, enzymes, and antibodies.

L-lysine is an exogenous amino acid that must be delivered to the system through a diet or supplementation. Lysine is essential in the production of any systemic protein, bones, and to maintain the normal structure of collagen and elastin found in connective tissue. Lysine takes part in the processes of regeneration, growth, and production of hormones, enzymes, and antibodies. L-lysine is also a precursor of L-carnitine, which plays a key role in fat metabolism and energy production. In addition, L-lysine may support the condition of the immune system and the proper functions of the cardiovascular system.

Aging of the body system
L-lysine plays a fundamental role in the formation of collagen, which is a component of the skin, muscles, and joints. Collagen is essential for the proper functioning of the entire connective tissue (ligaments, cartilage, joints, skin, bones, and teeth) and plays a key role in the development and repair of many tissues. Owed to an appropriate reconstruction of collagen-containing structures, athletes can recover faster after intense workouts, as well as protect the most injury-susceptible areas of the body. With age, collagen degradation exceeds its reconstruction, and L-lysine supplementation may counteract this phenomenon.

Mood and well-being
L-lysine, by affecting the serotonin receptors (5-HT4) in the gastrointestinal tract, exhibits anxiolytic and anti-stress activity. Studies show that excessive stimulation of 5-HT4 receptors in the gut is associated with stress-induced intestinal pathology. L-lysine, acting as a serotonin antagonist, and thus reducing its hyperactivity, reduces the signs of anxiety and anxiety-induced diarrhea. It has also been shown that lysine deficiency can lead to pathological serotonin increase in the amygdala – brain structure involved in emotional regulation and stress response.

L-lysine is also likely to reduce long-term anxiety in people who do not provide the right amount of this compound with a diet. Studies in humans have shown a negative correlation between decreased lysine consumption and stress. The observations were made on families whose diet was based mainly on granular products and most probably contained small amounts of this amino acid. It has been proven that the fortification of their diets with lysine reduced stress indicators, including cortisol levels.

Bone tissue
In vitro tests on human osteoblasts indicate that L-lysine exerts a positive effect on the proliferation, activation, and differentiation of the bone-forming cells. The results of these studies suggest that L-lysine can both increase intestinal absorption of calcium and improve kidney functions related to the management of the calcium absorbed. All of these effects together may contribute to a positive Ca balance, which suggests the potential usefulness of L-lysine supplements for both prophylactic and therapeutic interventions in osteoporosis.

The latest scientific reports describe cases in which modern lysine-based medicines combined with phytotherapy have contributed to the destruction of cancer cells, leaving healthy cells intact. Such properties of this amino acid may be in the future a promising alternative to contemporary cancer therapies characterized by many side effects.

Cardiovascular diseases
A lysine-rich diet or L-lysine supplementation may favorably reduce blood pressure and thereby reduce the incidence of stroke and cardiovascular events. L-lysine has the ability to inhibit the accumulation of deposits on the arterial walls, which may prevent the flow of blood and nutrients.

Herpes simplex virus
The HSV virus causes inflammatory lesions at the margin of skin and mucosa, most often around the lips and reproductive organs. Herpes simplex virus has an indirect association with cervical cancer and is also a strong risk factor in the development of Alzheimer's disease. L-lysine has been shown to inhibit the multiplication of HSV in cell cultures.

In summary, NOW FOODS L-Lysine is a dietary supplement that has a very wide range of applications. The preparation can be a great tool in the prevention of cardiovascular diseases, osteoporosis and may also prevent the recurrence of herpes simplex. In addition, the supplement supports the production of collagen, and thus counteracts skin aging and contusions of connective tissue.


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Container size: 250 capsulesServing size: 1 capsuleServings per container: 250
per 1 capsuleamount%DV
L-Lysine (hydrochloride)500 mg*

Other ingrednients

Gelatin (capsule), Stearic Acid (vegetable source), Cellulose, Rice Flour and Magnesium Stearate (vegetable source).


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Lysine belongs to the group of 9 essential amino acids delivered into the body from outside (with food or as a supplement) .It is a building substance of protein (the muscle protein). It is available in food of animal origin (meat, dairy products) and vegetable (legumes). It plays an important role in many physiological processes (absorption of calcium, production of enzymes, hormones and antibodies), and arginine is a component of supplements that increase the synthesis of growth hormone (HGH stimulators). In the form of hydroxylysine (a component of collagen) recommended for the treatment of sports injuries, and prevention. In the case of stress and excessive physical and psychological overloads, it is recommended due to the function of lowering cortisol levels. Also it applies in medicine, in the treatment of anxiety and herpes. The share of lysine intake of daily doses of amino acids should not exceed 5.1%. Available for purchase at
In the processes of digestion of protein matter, as a result of decarboxylation of lysine, may be converted into cadaverine (biogenic amine) having a strong toxicity.
Dosage: the lack of a well-defined standard daily intake of lysine. The supplementation dosages regularly used: with arginine 500 mg - 2g (before bedtime) pre- and post-workout optionally with other amino acids.

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